Folding knife



FIG. 1 is a front elevational view of a folding knife showing my new design;

FIG. 2 is a bottom plan view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a left elevational view;

FIG. 6 is a right elevational rear view;

FIG. 7 is a front elevational view with the folding knife blade in a closed position;

FIG. 8 is a bottom plan view with the folding knife blade in a closed position;

FIG. 9 is a rear elevational view with the folding knife blade in a closed position;

FIG. 10 is a top plan view with the folding knife blade in a closed position;

FIG. 11 is a left end view with the folding knife blade in a closed position; and,

FIG. 12 is a right end view of the folding knife with the knife blade in a closed position. 

The ornamental design for a folding knife, as shown and described. 